Thedifficultyis________wehaven'

发布时间:2020-07-28 07:30:12

The difficulty is ________ we haven't so many workers.A.whichB.thatC.whatD.why

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B解析解析:本题考查表语从句的引导词。从所给的选项看,四个词都可以引导表语从句,但表语从句为陈述句语序,只能用that引导。故本题正确
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